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AWS BVAg-31 vs. Type 3 Niobium

Both AWS BVAg-31 and Type 3 niobium are otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
100
Poisson's Ratio 0.36
0.4
Shear Modulus, GPa 33
38
Tensile Strength: Ultimate (UTS), MPa 180
220

Thermal Properties

Latent Heat of Fusion, J/g 150
310
Specific Heat Capacity, J/kg-K 280
270
Thermal Expansion, µm/m-K 18
7.3

Otherwise Unclassified Properties

Density, g/cm3 10
8.6

Common Calculations

Stiffness to Weight: Axial, points 4.9
6.8
Stiffness to Weight: Bending, points 15
18
Strength to Weight: Axial, points 4.9
7.2
Strength to Weight: Bending, points 7.0
9.5
Thermal Shock Resistance, points 7.8
21

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.010
Copper (Cu), % 31 to 33
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0
0 to 0.0050
Lead (Pb), % 0 to 0.0020
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
98.6 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 57 to 59
0
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0.8 to 1.2